To make a visible body mod look better, you should pair it with animation overhauls that bridge the gap between first and third person:

Finally See Yourself in First Person – This Fallout 4 Mod Changes Everything

If you are ready to dive in, here is the safest method using (assuming you have a PC copy of Fallout 4 from Steam).

Overview

To install these mods, you'll need to use a mod manager like Nexus Mod Manager or Mod Organizer. Here's a brief step-by-step guide:

. Most attempts are "workarounds" that move the third-person camera into the head, which can lead to significant clipping and animation issues.